There are quite a few people here that are just starting up in UW photography (myself included) and, as you said, equipment is the 1st step. So naturally there will be a lot of discussions about that. I'm sure that many people here got interested in the subject by seeing the work and discussions of others they've met here. As such, the number of equipment questions (and many of them similar) will be significantly higher, as you noticed.
As to the artistic side of things - that's subjective. What's pleasing to one person's eye, may not be so to another. Something that speaks to me may not quite have the same effect on you, and vice versa. Also, not all photography is necessarily art. Sometimes photography is simply a means of documenting the places and things you saw, something to go back to and remember at a later date. Yet there is still a lot of technique and skill involved in making a good photograph. Good composition and mastery of equipment are paramount to taking better photos, be they artistic in nature or simply "documenting" material. Granted, the two are often related, but not always.
But I do agree that it would be nice to have more discussions be focused on technique and artistry of a shot. I say technique, because I feel it is just as important to know the best way to use your camera as it is to feel where and when to point it. The best way, I think, is for people to share their work here and for others to provide their criticism. Some already do, and a number of those that ask for equipment advise will hopefully start as well, once they get to take their new toys out for a spin.
Keep in mind, that ScubaBoard itself is not dedicated to UW photography, and on this board we only have one forum for the topic. So it is up to the people using this forum to direct the conversations here in the directions that we wish. Be it equipment, artistry, technique, or a blend of them all.
With that said, I'd be very curious to hear what other UW photographers on this forum have to share as far as their techniques and the thoughts that went into their shots. I noticed you doing that to an extent, and a few otehrs. It definitely helps to get a perspective on the shot, and I've enjoyed viewing yours and others' work.
-Roman.